fix(website): improve mobile responsiveness (#554)

packages/website/src/views/DocsView.vue

@@ -1,15 +1,41 @@
 <script setup lang="ts">
-import { useRoute } from 'vue-router'
+import { useRoute, useRouter } from 'vue-router'
+import { useI18n } from 'vue-i18n'
 import DocSidebar from '@/components/docs/DocSidebar.vue'
 import DocContent from '@/components/docs/DocContent.vue'
 
 const route = useRoute()
+const router = useRouter()
+const { t } = useI18n()
+
+const pages = [
+  { key: 'gettingStarted', name: 'docs.getting-started' },
+  { key: 'configuration', name: 'docs.configuration' },
+  { key: 'features', name: 'docs.features' },
+  { key: 'platforms', name: 'docs.platforms' },
+  { key: 'api', name: 'docs.api' },
+]
+
+function navigate(name: string) {
+  router.push({ name })
+}
 </script>
 
 <template>
   <div class="docs-layout">
     <DocSidebar v-if="route.meta.page" />
     <div class="docs-main">
+      <nav v-if="route.meta.page" class="mobile-doc-tabs">
+        <button
+          v-for="p in pages"
+          :key="p.key"
+          class="mobile-tab"
+          :class="{ active: route.name === p.name }"
+          @click="navigate(p.name)"
+        >
+          {{ t(`docs.sidebar.${p.key}`) }}
+        </button>
+      </nav>
       <router-view />
       <DocContent v-if="route.meta.page" />
       <div v-else class="docs-placeholder">
@@ -38,4 +64,49 @@ const route = useRoute()
   font-size: 16px;
   text-align: center;
 }
+
+// ─── Mobile doc tabs ────────────────────────────
+
+.mobile-doc-tabs {
+  display: none;
+  overflow-x: auto;
+  -webkit-overflow-scrolling: touch;
+  gap: 4px;
+  padding: 12px 16px;
+  border-bottom: 1px solid var(--border-color);
+  background: var(--bg-card);
+  position: sticky;
+  top: 60px;
+  z-index: 10;
+
+  &::-webkit-scrollbar {
+    display: none;
+  }
+}
+
+.mobile-tab {
+  flex-shrink: 0;
+  padding: 6px 14px;
+  border: 1px solid var(--border-color);
+  border-radius: $radius-sm;
+  background: transparent;
+  color: var(--text-secondary);
+  font-size: 13px;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all $transition-fast;
+  white-space: nowrap;
+
+  &.active {
+    background: var(--bg-secondary);
+    color: var(--text-primary);
+    border-color: var(--text-muted);
+  }
+}
+
+@media (max-width: $breakpoint-mobile) {
+  .mobile-doc-tabs {
+    display: flex;
+  }
+}
 </style>